Figure 19.

Flow artefacts observed in the half-Fourier acquisition single-shot turbo spin-echo sequence simulating aortic dissection (a) and pulmonary embolism (c) that disappeared on volumetric interpolated breath-hold examination sequences (b, d). These artefacts are mainly related to the axial orientation of the aortic arch and left main pulmonary artery when performing dark-blood double inversion-recovery pulse sequence. A perpendicular black-blood sequence to these vessels could also suppress these artefacts.